/Engine/Source/Editor/Experimental/EditorInteractiveToolsFramework/Public/EdModeInteractiveToolsContext.h
These delegates can be used to hook into theRender()/DrawHUD()/Tick()calls above. In particular, non-legacyUEdMode's don't normally receiveRender()andDrawHUD()calls from the mode manager, but can attach to these.
typedef TMulticastDelegate_OneParam< void, [IToolsContextRenderAPI](API\Runtime\InteractiveToolsFramework\IToolsContextRenderAPI) *RenderAPI > FOnRender